Paramedrau Technegol
| Eitem | Dur Csk Head Knurled Rivet Nut |
| Deunydd | Dur |
| Gorffen | sinc ar blatiau. |
| Maint | M5-6.9-13 |
| Pacio | pacio bocs, pacio swmp .neu becyn bach. |
| Geiriau allweddol | rhybed dall . cromen pen dall rhybed .cheap dall rhybed . |
